Hi guys, I am pretty new here and with android development. I have created my first app and am looking to expand on it and add some more style to it. What I am trying to do is add a navigation drawer to the app. So instead of the buttons on my home screen to bring me to new activities I want to have these buttons as selections in the drawer. But i have spent all day looking up tutorials and trying stuff out but I have made zero progress. Can anyone help start me off in the right track with my code?
So this is the main activity where i have my three buttons that I want to put into the drawer
package com.example.rory.dripdrop;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.os.Handler;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ListView;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
public class MyActivity extends Activity implements MyAdapterInterface{
private CustomCursorAdapter customAdapter;
public ListView list1;
//instantiating the database class
com.example.rory.dripdrop.DBAdapter db = new com.example.rory.dripdrop.DBAdapter(this);
public MyActivity mMyActivity;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_my);
list1 = (ListView)findViewById(R.id.data_list);
db.open();
mMyActivity = this;
//button and listener for add activity
Button addBtn = (Button)findViewById(R.id.add);
addBtn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent i = new Intent(MyActivity.this, Add.class);
startActivity(i);
}
});
//button and listener for delete activity
Button deleteBtn = (Button)findViewById(R.id.delete);
deleteBtn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent i = new Intent(MyActivity.this, Delete.class);
startActivity(i);
}
});
//button and listener for update activity
Button updateBtn = (Button)findViewById(R.id.update);
updateBtn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent i = new Intent(MyActivity.this, Update.class);
startActivity(i);
}
});
try {
String destPath = "/data/data/" + getPackageName() + "/databases/AssignmentDB";
File f = new File(destPath);
if (!f.exists()) {
CopyDB( getBaseContext().getAssets().open("mydb"),
new FileOutputStream(destPath));
}
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
//handler function for custom adapter, found example online to help with this
new Handler().post(new Runnable() {
@Override
public void run() {
customAdapter = new CustomCursorAdapter(MyActivity.this, db.getAllRecords(), mMyActivity);
list1.setAdapter(customAdapter);
}
});
}
public void onResume()
{
super.onResume();
//update list
addData();
}
//refreshes data base when main page is resumed
public void addData()
{
//handler function for custom adapter, found example online to help with this
new Handler().post(new Runnable() {
@Override
public void run() {
customAdapter = new CustomCursorAdapter(MyActivity.this, db.getAllRecords(), mMyActivity);
list1.setAdapter(customAdapter);
}
});
}
//chaning the running total
public void updateLitres(int value)
{
EditText editLitres = (EditText)findViewById(R.id.edit1);
//EditText myEditText2 = (EditText)findViewById(R.id.edit2);
editLitres.setText(String.valueOf(value));
//myEditText2.setText(String.valueOf(value));
}
public void updateCost(double value)
{
EditText editCost = (EditText)findViewById(R.id.edit2);
editCost.setText(String.valueOf(value));
}
private class DBAdapter extends BaseAdapter {
private LayoutInflater mInflater;
//private ArrayList<>
@Override
public int getCount() {
return 0;
}
@Override
public Object getItem(int arg0) {
return null;
}
@Override
public long getItemId(int arg0) {
return 0;
}
@Override
public View getView(int arg0, View arg1, ViewGroup arg2) {
return null;
}
}
public void CopyDB(InputStream inputStream, OutputStream outputStream)
throws IOException {
//---copy 1K bytes at a time---
byte[] buffer = new byte[1024];
int length;
while ((length = inputStream.read(buffer)) > 0) {
outputStream.write(buffer, 0, length);
}
inputStream.close();
outputStream.close();
}
}
And this is the XML of that Activity
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical"
android:padding="20dp"
android:background="@drawable/backg1">
<ScrollView
android:id="@+id/scrollView1"
android:layout_width="fill_parent"
android:layout_height="331dp"
android:layout_weight="0.44"
android:fillViewport="true" >
<LinearLayout
android:id="@+id/linearLayout1"
android:layout_width="fill_parent"
android:layout_height="fill_parent" >
<ListView
android:id="@+id/data_list"
android:textStyle="bold"
android:layout_width="fill_parent"
android:layout_height="355dp">
</ListView>
</LinearLayout>
</ScrollView>
<RelativeLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<TextView
android:id="@+id/total"
android:text="@string/total"
android:textStyle="bold"
android:textColor="@color/black"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
<EditText
android:id="@+id/edit1"
android:layout_toRightOf="@+id/total"
android:layout_width="75dp"
android:layout_height="wrap_content" />
<TextView
android:id="@+id/totalCost"
android:text="@string/total2"
android:textStyle="bold"
android:textColor="@color/black"
android:layout_toRightOf="@+id/edit1"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
<EditText
android:id="@+id/edit2"
android:layout_toRightOf="@+id/totalCost"
android:layout_width="75dp"
android:layout_height="wrap_content" />
</RelativeLayout>
<RelativeLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:weightSum="1">
<Button
android:id="@+id/add"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="left"
android:text="@string/add"
android:textStyle="bold"
android:layout_centerVertical="true"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true" />
<Button
android:id="@+id/delete"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/delete"
android:textStyle="bold"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true" />
<Button
android:id="@+id/update"
android:layout_gravity="right"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/update"
android:textStyle="bold"
android:layout_alignParentTop="true"
android:layout_alignParentRight="true"
android:layout_alignParentEnd="true" />
</RelativeLayout>
</LinearLayout>
